as they wrote it does only work in private windows and to test if it works one has to visit the same page in a private and normal window. Also it is restricted to a unknown (?) list of specific web sites.

So in short: no, I did not test it.

And obviously processing cookie banners automatically requires some kind of scraping technology. Not easy, not reliable. So Im afraid we have to live with that for a while 🤷‍♂️